“Strengthening of Hollow Section Steel Columns by Using Carbon Fibre Reinforced Polymer: A Review”

Abstract

Carbon fibre reinforced polymers (CFRP) are widely utilised in modern concrete technology due to the advantages beyond conventional steel reinforcements. These materials have a feature of high strength capacity and resistance against corrosion and may be used as the primary reinforcements in conjunction with adhesives and anchorages in order to strengthen hollow section steel columns. Hollow section steel columns have widely been chosen over solid columns to minimise construction costs and self-weight when it is technologically required. Despite their universal usage, current design standards do not highlight any particular issues associated with hollow section columns. The total strength of CFRP in hollow section steel columns is determined by the fibre type, configurations, materials, and strengthening method used. This paper examines past experimental studies and works in the concerned field and demonstrates the structural benefits that may be achieved, as well as cost savings, by using CFRP on hollow section steel columns. This paper highlights current research on the use of carbon fibre reinforced polymer to strengthen hollow section steel columns. The emphasis is on various kinds of hollow sections reinforced with carbon fibre reinforced polymer. A concise conclusion outlines the tool's advantages and limitations, and the article would provide an added information to many engineers who are involved in this event.